/*
 * Hibiscus is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 3 of the License,
 * or (at your option) any later version.
 *
 * Hibiscus is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Hibiscus; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * Copyright (C) 2003 Tetete - http://tetete.hu.
 */
package hu.tetete.hibiscus.expression;

import hu.tetete.hibiscus.propertyvalue.PropertyValue;

import java.io.Serializable;
import java.util.Map;

/**
 * Interface of expression. The expressions are controlling the visiblity of properties.
 * To make a decision the expression needs the selected value. Every time when a property value is modified
 * all the displayed properties' visibility will be rechecked.
 */
public interface Expression extends Serializable {

    /**
     * @param values The adjusted, selected etc. values.
     * @return <tt>true</tt> if the expression with the given values returns true, otherwise <tt>false</tt>
     */
    boolean isVisible(Map<Long, PropertyValue> values);

}
